| ID | Name | Required | List |
|---|---|---|---|
| ORI | Originating Agency Identifier (ORI) | Y | N |
| ID | Name | Required | List |
|---|---|---|---|
| DRI | Nlets Destination Code (DRI) | N | Y |
| HLP | State Help Subject (HLP) | N | Y |
| ID | Name | Required | List |
|---|---|---|---|
| HLP1 | Nlets Help Files (HLP1) | N | Y |
| ID | Name | Required | List |
|---|---|---|---|
| CP | Canadian Province Codes (CP) | N | Y |
| CH | Canadian Help Subjects (CH) | N | Y |